Question for an Electrician

[GoodGuy]

Would appreciate some advise. I am making an office area & in that office area I need electrical boxes. I have installed 3 doubles & my question is regarding the grounds. I have 14/2 coming into the box & at that point I have taken the ground & wrapped it on the box screw. Do I need to run a ground wire to the plug assembly as well because there is a ground screw on the plug assembly or am I Ok to just ignore that. I have attached a pic to help understand what I am doing. Thanks

 

[Birdhunter1]

If you tied your ground wire to the ground screw on a metal box, and you're using a receptacle with a metal frame that has a metal screw that screws into a metal tab on the metal box you should be ok without running a seperate ground wire.

 

[Thorndike]

I beleive you have to bond the device to the ground also. I always do when I use those mettallic boxes. Why did you use metallic boxes? Inspector 507 can clear this up when he sees this. /forums/images/graemlins/confused.gif

 

[brewdog]

I always run an additional wire from the ground screw on the receptacle to and join it with the grounding wire on the steel recptacle box. Technically the mounting screws act as a ground for the metal frame on the receptacle by bonding with the box ground. Screws strip and break. Most licensed electricians practice the additional ground wire method for added safety.

 

[Inspector507]

<font color="blue"> Inspector 507 can clear this up when he sees this. </font>

Problem solved via e-mail /forums/images/graemlins/grin.gif

 

[_RaT_]

However, it would be beneficial to those who viewed this thread and may want to know. I suppose code varies not only by county but also sometimes by inspector. I always bond my metal boxes and ground my outlets via the ground wire(s). I typically use Buchanan crimps. I like the metal type that crimp much more solid then the copper ones.

 

[TOMLESCOEQUIP]

</font><font color="blue" class="small">( I beleive you have to bond the device to the ground also. I always do when I use those mettallic boxes. Why did you use metallic boxes? Inspector 507 can clear this up when he sees this. /forums/images/graemlins/confused.gif )</font>Is it necessary to use dielectric grease on the screws when fastening them to the box ?

 

[Highbeam]

"Inspector 507 can clear this up when he sees this.

Problem solved via e-mail"

Yipee skippy. How about letting us all in on the answer?

 

[DocHeb]

With his long history here I would trust Inspector 507's opinions above all others, but I'm sure he gets tired of responding - only to get attacked for his answers. I'm sure his email-only responses are a protective measure - you can only ignore the riff-raff for so long without getting discouraged.

 

[_RaT_]

No, you definitely do not need dielectric for the copper to steel connection.